7-tube TRF console
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| Year: 1930 ? | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Valves / Tubes | 7: 26 26 26 24A 26 45 80 |
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| Main principle | TRF with regeneration; 2 AF stage(s) |
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| Tuned circuits | 4 AM circuit(s) |
| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | Alternating Current supply (AC) / 110 Volt |
| Loudspeaker | Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm |
| Power out | 2 W (undistorted) |
| from Radiomuseum.org | Model: 7-tube TRF console - Criterion; where? |
| Material | Wooden case |
| Shape | Console, Lowboy (legs < 50 %). |
| Dimensions (WHD) | 27 x 39.5 x 15 inch / 686 x 1003 x 381 mm |
| Notes | The chassis is made of spot-welded galvanised steel, with the top and sides painted. Very unusual: the volume control (reaction ?) for the 4th tuned circuit (Det.), and the slight reaction for the 1st RF by increasing the grid to plate capacity. |
Model page created by Stephen Masek. See "Data change" for further contributors.
All listed radios etc. from Criterion; (where?)
Here you find 4 models, 4 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
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Hits: 1361 Replies: 1
Criterion
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Stephen Masek
13.Mar.14 |
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Have you ever hard of the brand or manufacturer Criterion? A few days ago I bought a Criterion radio. It is a low-boy console with 7-tube TRF chassis. I already have it playing. Sombody is on E-Bay now trying to sell a page from a 1930 Blish, Mize & Silliman Hardware Co. catalog showng Criterion radios. The two models shown on that page use screen grid tubes, so they are probably one model year newer than the radio I have. They may not even be from the same maker. However, the chassis in my radio is painted, and I see that a radio in that ad has a chassis finished in "gold moire," which would mean paint. Attachments
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Stephen Masek
14.Mar.14 |
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Thank you to all who have viewed this thread. I added photographs and a schematic. |
End of forum contributions about this model
